Coal-mining skid



T. P. SANTARELLI.

C-OAL MINING SKID.

APPLICATION FILED SEPT. 14, 1920.

Patented Jan. 31, 1922.

3 SHEETSSHEET 1- fFS/q/W/mu.

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k 2 3 Q i g T. P. SANTARELLI.

COAL MINING SKID.

APPLICATION FILEDISEPT. 14'. 1920.

Patented Jan. 31, 1922.

3 SHEETS-SHE S? 2.

IFS WW ay.

T. PQ SANTARELLI.

COAL MINING SKID.

APPLICATION FILED SEPT. 14, 1920.

Patented Jan. 31, 1922.

3 SHEETSSHEET 3.

UNITED sures THOMAS P. SANTARELLI," or ooArioREE r, ootonanor COAL-MINING SKID.

. certain new and usefullmprovements in a Coal-Mining Skid, of whichthe following is a specification. H

'This invention relates toskids or runners for-coal cutting or. mining machines, and

has for one of its objectsto improve the con-. struction and increase the efliciency and j l j j v Y talled, like the'guldeway .12. Forthe' pur utility of devices of this character. 7 7 Another object of the invention is to provide .a device of this character which may be disposed beneath the under frame of a coal cutting machine and adaptable without material structural change, to machines of various forms and sizes I Another object of the invention is to pro vide a device of this characterwhereby the coal cutting machine maybe adjusted vertically, to adapt it to thevein to be cut,'and

to enable the course of the cutting chain to be varied to avoid obstructions. v

lVith these and other objectsin view, the

I invention consistsin certainnovel. features of construction as hereinafter shown and described and then specifically pointed out in the claims, and inthedrawings illustrative, of the preferred embodiment of the-inven tion. 1

Figure 1 is a plan view,, I V V Fig, 2 is a side elevation partlyin section of the improved apparatus, 1

Fig. 3 is anenlarged sectional detail the wedge block mechanism at the'forwa'rd endof the device, I

Fig. 1 is a plan view of the parts wshown inFig.3,

line 5 5 of Fig. 3. r

Fig. 6 is an enlarged sectional detail of the ratchet devices,

- Fig. 7 is a plan view of one of the ratchet devices,

Fig; 8 is an enlarged sectional detailv of the wedge block mechanism at the rear'end of the device, V

Fig. 9is a plan view of' the parts shown.

1?. si -f I is. an end view of the parts shown in Fig.3, with the base in section on the and 12 are details ofthe pull "Parent cFF c 10 c urved upwardly atone ehd,l -ais shown J at 11, like a sled runner, toenableittobe;

readily drawnoven the ground. The base member 10 is provided with a longitudinally directed guide way near one side edge, indicated at 12, with slightly doves tailed ssa wise formed with a.

lateral offset near one end and includingthe curved port-ions 11. i Y;

,The fiat or horizontal part of t-heotfset.f is provided with a longitudinally directed.

guideway, indicated at 1 1, and slightly (love I i I poseof the description, thecurvediend off the plate 10. will bereferrjed-to as ,the front,fs

and the opposite end. as; the rear,

thedovetailed walls of the guideway."v By; this menns the bar while freely movablejin,

the guirleway, willnot move'fvertically away from the base plate. Formed in the bar 15 at the rear e d, is a socket 16 having dovetailed'ends, and bearing upon the barv is a rear :,wedge blockf having'a dovetailed stud 18 Zengaging in the ,Slidable in the guideway 12. is stark having dovetailed edges to correspondto isdetachably coupled to the In its upper face; the block 17- is orine'di witha plurality of transverse half bearings to "receive the journals. '19 of rollers; 20,fthe

i journals being held in the bearing by 'icap' members 21 in the form of jstripsshaving half bearings I to engage over'fthe journals, and held to the block-by; a screwQbetWeenQ eachpair ofbearings. H l other shorter bar or support 24,; and rigidly attached to this'lattergbar byfa plurality of screws 22 is another wedge block 25m ranged rev'ersely to the block 17.,

SIidabIe in theshorterlguideway, 143s a The block 1.71s thereforetheffre blek, "I

- and the block 25 is" the frontl b1tck', and' are so. referred to inthis description. 1

formed with, a pluralityfof transverse half;

27,the journals being heldin tjl1ebearingsf by cap members 28 in the te m jot; strips having half bearings to" engage over the ,100' Inits upper face theffront blockf25 is bearingssto receive the journals 26 ofroller sa i v journals 26 and held to the block'25 screw between each pair of the bearings, Attached across the plate LOfnear the front. or-curved end, is a'ratchet housing in nel form, which includes spaced sides 30%31," and mounted for rotation in the" portion 31 V longitudinally directed channels or grooves 34 and 35 transversely of their threads.

Attached to the bar 15 at the front end is a nut device 36 with which the screw engages, and attached to the side 31 of the ratchet housing is a nut device37 with which the screw engages.

Engaging each of the screws 32 and 33 between the sides 30-31 of the ratchet housing are operating ratchet levers, and, as the levers are alike the description of one will sufiice for both.

Each lever comprises a hub portion 38 having ratchet'teeth 39 and with a keyway. to receive a key 40 engaging in the channels in the screws. By this means the hubs when rotated will correspondingly rotate the screws. 7 v v The member 38 is formed with annular bearing flanges at the ends, and rotative upon these hearings are plates 41 eachhaving inwardly directed guide ribs 42. Engaging the contiguous faces of the members 41 and between the ribs 42 are plates 43 connected at their outer ends to a stud 44, the latter separated from the plates 43 by a stop flange 45. The plates 43 and the members 41 are rigidly united by transverse pins or bolts 46 and 47 Swinging upon the pins 46 sideby side between the plates 43 are double toothed pawls 48, each having a divided rearward extensionthrough which a p n 49 passes. U-

a shaped leaf springs 50 are disposed between theplates 43 and are formed with seats at the ends of their sides to bear respectively against the pins 46 and 49, and thus hold thepawls yieldably in engagement with the ratchet teeth 39; v

Each'pawl has two teeth, and are so spaced and arranged relative to the pin 49 that the springs 50 exert their force to lock either pair of teeth in engagement with the ratchet teeth. By this means the device isreversible and can be quickly arranged to actuate the screws in either direction.

The studs 44 are designed to receive'a section of gas or steampipe 51 to serve as an extension lever to actuate the ratchet.

Attached across the face of the base mem ber 10 is a buttress device including a lower horizontal portion52bearing on the base and an upper forwardly inclined portion 53, to limit the movement of the mining machine when supported bythe wedge blocks.

v The mining machine, represented conventionally at 54, when in its lowermost position rests by its lower member upon the plate 10 between the wedge blocks, with one side edge against the vertical portion 52 of the stop member. I

The improved skld device 1s arranged cross wise of the mining machine, as shown, and

when it is required to adjust the mining machine, the ratchet levers are, actuated and the screws 32 and 33 rotate to move the wedge blocks 17 or 25 in either direction upon the base member 10 and thus elevate or depress the machine. If the sides of the machine are to be elevated or depressed uniformly,

' then both screws will be actuated in concert,

ways, and means for independently moving 7 said wedge blocks in the guideways to elevate or depress a structure supported thereon. i

' 2. In an apparatus of the class described, a runner member formed with longitudinally directed upwardly opening guideways in parallel relation and with overhanging confronting edges, coacting wedge blocks bearing upon said runner at each'side of the guideways, guide members attached to-said blocks and having bevelled edges to engage the overhanging edges of the guideways, and.

means for independently moving said wedge blocks in the guideways.

3. In an apparatus of the class described a runner member formed with longitudi nally directed upwardly opening guideways in parallel relation, coacting wedge blocks movably seated respectively in said guide ways, a stop member extending transversely of the runner and with an inclined face, said stop member g having an opening through which one of said wedge blocks moves and operating to limit the movement of the structure supported on the wedge blocks.

'4. In an apparatus of the class described, a runner member formed with longitudi-. nally directed upwardly opening giiidewaysv in parallel relation, coacting wedge blocks movably seated respectively in said guideways, a channel member transversely of the runner, nut devices within said channel member, operating screws rotative through said channel member, and respectively engaging said nuts, means for coupling said screws to said wedge blocks, and meansfor independently actuatingsaid nuts to cause the longitudinal movement of the wedge blocks in the guideways. Q i

In testimony whereof, I affix my signature hereto.

T. P. SANTARELLT. 

